Thermal controller for the heating system. Aries trm232m - a new controller for heating and hot water systems. Heating controller selection

: appearance, case, bezel and reliable internal stuffing, differ only in special software with PID control. SEC-03 GVS (hereinafter referred to as a thermostat, differential controller, temperature controller or device) is designed to operate in hot water systems[DHW] (for example, with an indirect heating boiler) and a three-way mixing valve, or for use in other industrial and technological processes that require differential temperature control from two digital temperature sensors (DTC or temperature sensors), in order to maintain the temperature of hot water or other liquid in the tank [tank, heat exchanger, etc.] at a user-specified level by controlling the servo drive of the three-way mixing valve and the load [for example, pump, heating element, etc.].

Photo 1. External view of the TRTs-03 GVS controller.

Photo 2. Controller TRTs-03 GVS in operation.

The device is capable of controlling one circuit of the heating system - two loads at the same time: circulation pump[maximum active power no more than 270 W]; servo-driven three-way mixing valve (valve)[with a maximum active power of a servo drive of no more than 270 W with a supply voltage of 220-230 V with 3-point control (OO)], for example, servo drives V70 and V70F can be used MUT Meccanica 7.030.00776 (V70 50 230 OO or V70F 100 230 OO) or similar servo drives from other manufacturers ( e.g. ESBE servo drives ARA600 series three-point 230VAC), in order to maintain the target temperature of the coolant at a given level according to the selected weather-dependent curve, with the display of the controlled temperatures from the temperature sensors on the built-in LED indicator.

Information on the weather-dependent controller TRTs-03 GVS

Features of the temperature controller

• PID control;
• mounting in a standard housing on a DIN rail;
• a modern microcontroller is used;
• digital thermal sensor for measuring the temperature of the coolant;
• digital thermal sensor for measuring the temperature of hot water;
• digital LED indication;
• circulation pump control;
• control of the servo-drive of the mixing valve [valve] SPDT with a supply voltage of 220-230 V;
• triac switches are used to control the loads ( electromagnetic relays are not used), which improves the durability and reliability of the device;

** The manufacturer reserves the right to make changes to the packaging, the appearance of the temperature controller, as well as to its circuitry and operation modes without deteriorating the technical characteristics of the device.

Some technical characteristics of the device

• Rated supply voltage: ~ 220 [+/- 5%] V;
• Rated frequency: 50Hz;
• Maximum switched power of active load (low-power output 1): 270 W;
• Maximum switched power of active load (low-power output 2): 270 W;
• Thermal sensor type: external, digital;
• Number of channels: two;
• Temperature measurement accuracy with a thermal sensor: 0.1 o C;
• Discreteness of indication of temperature: 1 o C;
• Measured temperature range: -40 ... + 99 o C;
• Temperature of liquids for display on the indicator: 0 ... + 99 o C;
• Indicator type: LED;
• Control type: digital (electronic) using a microcontroller;
• Power consumption of the thermostat (excluding the consumption of the connected loads): no more than 5 W;
• Mounting type: DIN-rail;
• Tremoregulator body width: about 70 mm;
• Protection degree: IP20;
• Ambient air temperature in the room where the thermostat is installed: 0 ... + 40 o C;
• Weight: about 120 grams;
• Compatible servos:V70 and V70F MUT Meccanica articles 7.030.00776 (V70 50 230 OO or V70F 100 230 OO); ESBE series ARA 600: ARA 661, ARA 671, ARA 651, ARA 662, ARA 691, ARA 672, ARA 692 ...; WATTS (Water Thechnologies): 3-way mixing valves V3GB with M60W servo drive; MEIBES: Meibes plus ST10 / 230; VALTEC: VT.M106.0.230; Vexve AM: article numbers 1920751, 1920750 and 1920749.

Diagram of a hot water supply system with a thermostat TRTs-03 GVS

Photos from a real object, where the ТРЦ-03 GVS temperature controller is installed and used to automate the hot water supply system.

Photo 1. Controller TRTs-03 GVS, display of hot water temperature.	Photo 2. Servo drive V70F MUT Meccanica in operation with thermostat TRTs-03 GVS.
Photo 3. Servo drive V70 MUT Meccanica and a temperature sensor in conjunction with a temperature controller.	Photo 4. Installing the thermal sensor into the sleeve and pouring thermal paste.

Maintaining a pleasant temperature in your home is not easy: traditional heating systems are static and do not take into account the weather changes during the day and the season. At the same time, a drop of several degrees seems significant to residents and is able to completely destroy the desired comfort. However, in recent years, electronics has made it possible to take a huge step in this area, because with its help it is possible to create heating systems that react to temperature changes almost with the sensitivity of a living organism.

In heating systems with weather regulation, having received a signal from temperature sensors that it is warmer or colder outside, programmable controllers, according to a schedule depending on the outside air temperature, calculate how much to heat (or cool) the batteries, and send a control signal to the valve in the heating circuit ... Following the instructions of the controller, he slightly opens or, conversely, partially closes the damper, allowing boiling water from the boiler or heating network to be added to the coolant in the strictly required proportion.

The programmable controller, responsible for such a delicate work, plays a vital role in modern heating systems. The Moscow company has been developing such devices for over 20 years and has accumulated extensive experience in this area.

The controllers and, developed and released by the OWEN company, regularly serve in the engineering systems of housing and communal services, regulating the temperature in the heating and hot water supply (DHW) circuits. However, as time goes on, the requirements for equipment are increasing. Today the company has prepared for release a new controller (Fig. 1) with expanded capabilities, designed to control temperature in both one and two independent circuits. In other words, these devices can be used:

In one heating circuit or underfloor heating;

In one DHW circuit;

In two heating circuits;

In two circuits of hot water supply;

In one heating system and one DHW system.

It will be in demand in engineering systems of housing and communal services, block individual heating points (ITP), systems with dispatching.

Versatility (one controller can be used to automate various types of systems);

Flexibility (easily reconfigured to work with one or two circuits);

Easy to set up.

Controller capabilities

The controller performs all the necessary functions that are in demand today in engineering systems of houses, including in “smart home” systems. It provides:

Automatic tuning of PID controllers;

Automatic selection of modes (heating / night / summer, etc.);

Diagnostics of emergency situations (breakage of communication lines, malfunction of pumps);

Setting the values ​​of technological parameters using the built-in keyboard or on a PC via RS ‑ 485 and RS ‑ 232 networks;

Support for OWEN, Modbus-RTU, Modbus-ASCII exchange protocols;

The ability to update the firmware (the necessary devices are included in the delivery set);

Quick configuration of the controller from the panel or using the configurator.

With the help of the proportional-integral-derivative control law, it controls and regulates the temperature of the heating medium in the circuits and the temperature of the return water. In addition, it measures the temperature of the outside air, direct water, and the pressure in the make-up circuits. The controller generates signals to control the output elements and maintains the temperature in the circuit in accordance with a fixed setpoint (for DHW circuits) or a schedule (for heating circuits). It has a built-in real time clock to control the heating schedule. Technical characteristics are presented in table. 1.

The controller is equipped with a symbolic liquid crystal display, thanks to which it is convenient to set up and operate the device using the keypad. The indicator shows measured values, operating modes and alarm messages in the system.

For single-circuit systems

The controller allows full automation of one loop without additional modules.

Automatic regulation of the temperature in the circuit in accordance with the schedule of the outside air temperature (direct water) or with a given setpoint;

Automatic regulation of temperature trev in accordance with the return water temperature schedule with protection against over / under temperature;

Charge pump control;

Controllers for heating and hot water supply systems TRM132M in combination with primary converters and actuators are designed to control and regulate the temperature in the heating and hot water supply circuits, display the measured temperature and operating modes on the built-in indicator and generate control signals for the built-in output elements and output elements of the MP1 module.

TPM132M controller capabilities

• Built-in real time clock
• Automatic tuning of PID controllers
• Automatic selection of modes (heating / reverse / summer)
• The ability to change the firmware (using the TPM133M flashing kit)

Functionality ARIES TRM132M

• Automatic regulation of the temperature in the DHW circuit in accordance with the preset setpoint
• Automatic temperature control in the heating circuit according to the schedule from T-outside air and T-direct water
• Development of the return water temperature graph depending on the T-outside air and T-direct water (protection against over and understatement of the return water temperature)
• Control of the main and standby pump in both circuits
• Overtemperature protection in the DHW circuit
• Heating circuit refill pump control
• Possibility of using a third pump in each circuit (emergency)
• Generation of control signals for external actuators and devices in the DHW circuit: shut-off and control valve, main and backup pumps, drain valve (optional); alarm devices
• Generation of control signals for external actuators and devices in the heating circuit: shut-off and control valve, main and backup pumps, make-up pump, alarm devices
• Diagnostics of emergency situations (breakage of temperature sensors and position sensors, pump malfunction)
• Setting the values ​​of programmable operating parameters using the built-in control keyboard, as well as from a PC via the RS-485 and RS-232 network
• Support of exchange protocols: ARIES, Modbus-RTU and Modbus-ASCI

Comparison of devices for controlling heating and hot water systems

For heating and hot water systems with 3-position control valves (220 V 50 Hz). Temperature sensors - 50M, 100M, 50P, 100P, Pt100	For heating and hot water systems with control valves with 3-position (220 V 50 Hz) or analog (0 ... 10 V, 4 ... 20 mA) control. Universal inputs. Valve control of the make-up circuit.	For single-circuit (one heating system / one DHW system / one "warm floor" circuit) or double-circuit (two CO, or two DHW, or CO and DHW, etc.) systems. For control valves with 3-position (220 V 50 Hz) or analog (0 ... 10 V, 4 ... 20 mA) control. Universal inputs. Circulation pump control. Cold water pump control Refill pump control "Quick start" for typical systems

Eliminate manual control entirely in the regulation of the operation of the heating and hot water supply system makes the controller possible.

This device is capable of not only controlling and maintain the required temperature regime, but also save energy.

Purpose of the controller

This unit belongs to the functionality "smart House"... Allocate the main tasks with which he copes:

• taking readings and smooth functioning of the temperature regime of the liquid in hot water supply and heating circuits;
• flow and return fluid temperature control in heating circuits, protection against its overheating;
• determination of pressure in the heating circuit;
• assessment of the condition and location of valves;
• measurement of the temperature index of the outside air according to the criteria day / night and winter / summer;
• response to a possible emergency and transmission of notification to external signaling;
• receiving data from a PC in order to change the information on the sensors;
• storing the set parameters in the memory in case of power outages;
• generation of control signals elements of hot water supply and heating systems;
• setting the required parameters using the built-in control keyboard;
• protection of received data from external industrial interference;
• display of control results on LCD;
• possibility of manual control the functioning of the system;
• stopping the heating process for the summer period.

Benefits of heating and DHW control

Positive aspects of using this device:

• the automatic system gives the ability to set the temperature regime hot water supply at a given level;
• energy saving;
• controller capable adjust the required temperature heating and hot water supply systems, depending on the time of day (day / night), season and according to any schedule specified by the user;
• well-established scheme of the whole system reduces the likelihood of pump wear;
• controller maintains a constant temperature in the return pipeline in accordance with the specified schedule, thereby excludes the possibility of getting a fine for exceeding it;
• the recharge of the circuit is brought to automaticity heating according to the data of the heating network pressure sensor;
• well-established alarm operation in case of deviation from the indicated readings of pressure sensors in networks, temperature conditions, electrical protection.

Instrument selection

Such a device is especially important for those cases when tenants are often absent from home... By connecting this device to the boiler control terminals, outdoor and indoor temperature sensors, it is possible to automatically control the change in the burner operation.

What to look for when choosing a controller:

• Number of components applicable to management. In some models, their number can reach 15.
• Software update rate. Some types of controllers for heating and hot water supply systems are connected directly to a PC, and on the official website of the manufacturer you can always download the latest version of the update.
• GPS unit. If it is included with the controller, it becomes possible to remotely control the heating and hot water supply system.

If you need professional advice in choosing a controller it is better to consult a specialist.

Features of use in a private house

Their presence is explained by the fact that such buildings are used two-pipe systems... In them, a circulation pump pumps in liquid, which is supplied through a distributor to each heating device.

Photo 1. Possible heating scheme for a private house from an induction boiler with a controller.

In such cases, the controller is used to protect the heating system from various emergency positions with the controller. safety unit... And also apply additionally flow control sensors(coolant), special valves.

In the house you can use thermostatic valves or room temperature controllers... The first allows you to set the desired mode to any source, and the second is responsible for the operation of the pump that supplies the coolant to the radiator.

If there is no Internet in a private house, then it is used GSM module allowing you to control the situation via your smartphone.

How to connect the controller to a heating boiler with your own hands

Pay attention to the nuances when installing the controller:

​

• avoid contact with direct sunlight;
• isolate from all electrical appliances;
• process at a height of at least 1.5 m from the floor;
• to provide constant air flow, avoiding drafts.

You can do it yourself with a controller connect in two options:

• using the terminal on the boiler;
• with the regulator cable.

Important! Such a process not worth doing in the kitchen or bathroom, since due to a possible increase in temperatures, malfunctions in the thermostat are permissible.

Practically each boiler has special contacts for connection controller to it. It is required to find this place and remove the jumpers and connect the thermostat. About, how to set up the device itself and start it working, indicated in the instructions.

Automation of heating and hot water supply systems is necessary to constantly maintain the specified temperature of the coolant and water without direct human intervention.

Benefits of using an automation system

• Controllers for heating and hot water systems allow you to regulate the temperature regime in the heating circuit according to the heating schedule, which depends on the air temperature or on the temperature of the direct water from the main;
• automation for water supply maintains the temperature of hot water supply at a given level;
• Controllers for heating and hot water systems help maintain the desired temperature of the heating and hot water systems and change it in accordance with a given schedule: day / night mode, work / weekends and according to an individual schedule set by the user;
• The heating system controller helps to maintain the temperature regime in the return pipe according to a predetermined schedule in order to avoid penalties for exceeding it;
• The feeding of the heating circuit is automated according to the readings of the pressure sensor in the heating network;
• An automatic transfer of the heating system between the "Winter / Summer" seasons can be configured, with periodic automatic scrolling of the circulation pumps;
• Overheating during thaw is excluded, energy is saved;
• Reduced pump wear due to optimization of the system operation algorithm;
• Alarm signals are configured in accordance with the readings of the temperature and pressure sensors in the networks, idle, electrical protection, etc.

Controllers KONTAR for heating and hot water systems

Controllers of heating and hot water supply systems "Kontar" are freely programmable controllers that are united into a single network via the RS485 interface, which makes them convenient for creating an extensive geographically distributed network. To program the controllers, the "Konggraph" design environment is used, in which an algorithm is created in the FBD language, which is easy to master for any engineer who is not a programmer. Programs for visualizing processes in the heating and hot water system allow monitoring parameters in real time, locally or via the Internet.

Installation of heating and hot water controllers reduces energy consumption by 30% by optimizing the operation of the systems according to an individually developed algorithm.

Controllers "Kontar" are suitable for automating projects of any complexity and scale from small structures to multi-storey buildings. To expand the system, you do not need to stop the already running controllers. Heating and hot water systems are also integrated with other building systems: security systems, energy metering, etc.

The following devices are recommended in the Kontar line of programmable controllers for the automation of heat points and heating and water supply systems:

• Programmable controllers - MC8, MC12,
• Expansion module (input-output module) - MA8.

Development of projects for automation of heating and hot water systems

For heat points, MZTA offers a library of algorithms. If there are no suitable algorithms in it, then you can develop them yourself. The development of algorithms is carried out in a special CONGRAF environment, and then using the CONSOLE software tool they are loaded into the programmable controller.

STANDARD PROJECTS for automation of heating points

A typical control loop for a substation based on a programmable controller usually includes the following functional controls:

• sensors: temperature, pressure, unauthorized access (optional);
• controls for giving commands in manual mode;
• means for visualizing the operating modes of the object;
• executive devices:
  • low-power (valve drives);
  • powerful (pumps).

• functional controls used in the technical solution;
• features of the heating object:
  • heated area,
  • number of storeys,
  • the spatial configuration of the location of pipelines and radiators in the heating system of the facility;
  • the presence of special zones with special thermal conditions.

Table 1 shows the outputs of programmable controllers, which are used to control actuators in the control loop of the substation.

Table 1 Outputs of programmable controllers for controlling executive devices

Additional components of spark-extinguishing circuits, intended for installation on a connected load, are included in the package of the supplied Kontar programmable controllers.

Depending on the features of a particular solution, control signals to actuators can be supplied through:

• analog output 0 V - 10 V;
• discrete output:
  • connected directly to the executive device;
  • connected to the power switch, which in turn controls the power device;
• RS485 port connected to the actuator via Modbus RTU protocol.

• set in the real-time scheduler (built into the programmable controller),
• manual control signals (built-in or plug-in toggle switches, buttons),
• logical sensor signals (presence sensor, temperature sensor),
• analog sensor signals (temperature, pressure),
• command from the control room,
• command from the Master controller.

Ports and inputs of programmable controllers, which can be used in heat station control algorithms, are shown in Table 2.

Table 2. Ports and inputs of programmable controllers for solving problems of heat station control

* When the controller is equipped with a built-in (MD8.102) or external (MD8.3) control panel.

Discrete inputs of programmable controllers and expansion modules are designed to connect sensors with discrete outputs in the form of a key (relay, open collector, optocoupler triac, etc.) to them. This solution makes it possible to simplify the coordination of programmer inputs with most types of sensors that transmit information about the measured parameter in discrete form.

The discrete inputs are galvanically separated from the circuits of the controllers / expansion modules.

The measuring function built into the MC8 / MC12 programmable controllers and MA8 expansion modules allows you to measure the analog signal depending on the type of sensor / signal:

For the correct connection of the sensor to the analog input of the programmable controller or expander, a configurator is provided at each input in the form of a contact group, on which jumpers are installed. The configurator is located under the cover of the instrument case. The locations and number of jumpers to be installed are determined by the type of sensor and its electrical characteristics. Jumpers are included in the scope of delivery.

Heating and hot water management

Depending on the scale of the task of automating the control of a heating station, the following can be implemented:

• Local control of the substation in configurations:
  • Standalone controller (based on MC8 or MC12).
  • Controller network: Master (MC8 or MC12) - Slave (MC12; MC8, MA8).
• Local or remote control lighting control in configurations:
  • Single controller (MC8 or MC12)
  • Controller network: Master (MC8 or MC12) - Slave (MC12; MC8, MA8)

To organize stationary local control of heating and hot water systems, special control panels equipped with indicators, control buttons and a liquid crystal display can be used:

• MD8.102 - built-in, is installed on the case of the MC8 / MC12 programmable controller.
• MD8.3 - external, usually installed on the door of the automation cabinet

The most convenient organization of local control of heating and hot water systems can be implemented on the basis of an external operator panel. We recommend external WEINTEK consoles for installation.

If adjustments to the algorithms are rarely made, and the maintenance specialists are few in number, then the use of external control panels can be completely abandoned. Their role can be played by a wearable laptop, tablet or smartphone connected to the controller directly at the location of the substation via an access point or via a wired interface (USB, Ethernet, RS232). To provide this possibility, there are special submodules.

Dispatching, or remote access to an object, can be organized both on the basis of wired solutions (Ehternet, Internet) and on the basis of wireless radio technologies, for example, via a GSM modem.

The MC8 / MC12 programmable controllers, in accordance with a predetermined list of critical parameters and events, transfer the corresponding data to the supervisory system and / or store them in their internal memory.

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Controllers for heating and hot water systems: application schemes and development trends

The word "controller" in translation from English means "regulator" or "control device". According to control theory, this is a device that monitors and controls engineering systems and generates control signals for them. Regulators monitor changes in parameters in the engineering systems of the facility and react to this change using a set of control algorithms and appropriate settings.

In Ukraine, 10-15 years ago, such devices were used, for the most part, in heating points and occasionally in boiler houses. Their functions were limited, that is, they were reduced, for example, to control one mixing valve or a separate element of the system. In this case, the switching on / off of boilers or pumps was carried out manually. And the circuits themselves were chosen for those algorithms of the controller's operation that could not fully cover all systems of a heat point or boiler room. Therefore, different parts of the system were controlled by separate controllers - control of heating, DHW, pumps, signaling of faults or alarms, etc. All control devices were placed in sufficiently large control cabinets.

By now, the situation has changed dramatically. Now the specialist has the opportunity to create almost any control scheme in which the controller can be applied. The amount of software can be quite large, since modern devices allow virtually unlimited amounts of information to be stored in memory. The speed of data processing has also been significantly increased.

The so-called "stand alone" controllers are widely used. preprogrammed controllers. These devices are designed to control individual district heating points or decentralized systems. In modern models of controllers, there are no longer one or two control schemes, as before, but 20 or more. And they can simultaneously control boilers on various types of fuel, heat pumps, solar systems, hot water boilers, storage tanks, etc.

Such devices are supplied to the Ukrainian market by various companies, for example, Danfoss (Denmark), Kromschröder (Germany), Honeywell (USA).

The required boiler temperature is calculated by the controller based on the heat demand from the controlled heating and DHW circuits. Each device can work independently or in a local network, in which there can be several controllers at the same time. All parameters, as well as time programs, are preset for each control circuit and can be individually adapted to the heating system and the user's requirements.

For example, Smile (Honeywell) controllers (Fig. 1) contain about 20 programs that allow them to be used for 30–40 circuits. The devices can be used locally (with each single controller controlling one or three heating circuits), as well as combined into one system (up to five devices). The controllers have three free inputs and two free outputs for additional control functions. Variations of heating systems are set at the stage of putting the system into operation.

Rice. 1. Smile controller

Changes to the operating parameters allow you to achieve a certain level of flexibility in the control of heating systems. Although these controllers have rigid algorithms of work, they can be adapted to a specific scheme. Let's say the controller controls a mixing circuit consisting of a valve, a pump and two sensors on the supply and return pipelines. When changing certain parameters responsible for the mixing valve, it is possible to connect a circulation pump of the hot water supply system to the controller, place the temperature sensors in the heat exchanger - and the controller no longer controls the heating system circuit, but completely controls the operation of the DHW system. That is, the same output can be used for different circuit components. This flexibility is relevant when reconstructing premises with additional heating circuits, for example, partial replacement of radiator heating with a "warm floor" or expanding the DHW system. In this case, one controller will also control the "warm floor" system, radiator heating, a boiler and a hot water supply system.

It is possible to connect remote modules with indoor air temperature sensors. The plug-in modules have a knob for changing the settings and a switch of the "Economy / Scheduled / Comfort" modes, a digital display, and duplicate the controller settings buttons, providing full access and remote control mode. Individual control of a separate heating circuit from one room is possible. To do this, a wall module of a suitable model must be built into the heating system.

Technical characteristics of Smile controllers: power consumption - 5.8 VA, they operate from a household AC network. Protection degree IP 30. Dimensions (W × H × D) - 144 × 96 × 75 mm. The housing is made of anti-static ABS plastic. The maximum bus length is 100 m. The device is wall-mounted using terminal boxes.

Modern controllers are suitable both for creating weather-dependent systems for regulating the temperature of the heat carrier flow (for example, radiator, convector), and for systems where it is necessary to maintain a constant temperature of the heat carrier (for example, systems of the "warm floor" type, or for swimming pools) by means of mixing circuits, including heliosystems.

By using several "stand alone" controllers, it is possible to create a sufficiently large and complex control system, suitable even for a large public building.

In individual construction, controllers allow you to organize systems in which it is possible to use various heat generators, including those using alternative energy sources.

It is almost impossible to create such systems without controllers. After all, all their components have different algorithms and operating modes. It is advisable to turn on the electric boiler at night, when the electricity tariff is cheaper (with multi-tariff metering). Or use a heat pump at the same time. In the daytime, the solar collectors are switched on, and at peak loads on the hot water supply in the morning and in the evening, you cannot do without a gas boiler. Accordingly, it is possible to turn off the electric boiler during the daytime. In this case, all heat sources operate on a storage tank, the temperature in which must also be controlled and, in accordance with it, the operation of the entire system must be balanced. At the same time, a work schedule is laid down by time of day and days of the week.

Combined schemes

One of the most relevant is the use of gas and electric boilers in one system or a gas boiler and a solid fuel boiler (the first as the main one, the second as an additional one) (Fig. 2).

Rice. 2. Scheme with the combined use of electric and gas boilers: AF, WF1, WF2, VF1, RLF1, SF - temperature sensors (outdoor air, boilers, coolant in the supply and return pipelines, DHW storage tank); MK1 - electrically operated three-way mixing valve; Tmax - surface-mounted thermostat; P1, SLP, ZKP - pumps

Moreover, in the first case, since it is advisable to turn on the electric boiler at night, when the electricity tariff is lower, a timer with a day, weekly schedule and a weekend program is used. In the second case, in the absence of gas, the solid fuel boiler will maintain the operation of the heating and hot water supply systems at the required level. Also, heat sources using various types of fuel make it possible to ensure the reliability of the system operation under certain other force majeure circumstances.

In this case, the controller provides control of boilers, limiting the maximum temperature at the outlet from the boilers, stepless (smooth) control of a gas boiler with an optimal load on it. It is possible to organize the control of work taking into account the air temperature in the room and weather correction. Anti-freeze, automatic anti-legionella and hot water priority functions are available.

Connecting a heat pump allows you to create systems in which alternative energy is the base for heating water in a buffer tank (Fig. 3).

Rice. 3. Use of a gas boiler, a heat pump and a buffer tank: AF, WF, VF1, KSPF, VE1, SF - temperature sensors for the outside air, boiler, coolant in the supply pipeline, at the inlet and outlet of water from the buffer tank, DHW storage tank; KVLF - water temperature sensor; MK1, VA1 - electrically operated three-way valves; P1 - pump of the mixing circuit of the heating system; VA2 - pump for loading the buffer tank from the heat pump

At the same time, the automation will ensure control of the water temperature at the outlet of the heat pump and optimization of the equipment operation processes. In this scheme, the base heat source is the heat pump and the gas boiler covers the peak loads of the system. Greater freedom of choice of fuel can be provided by a scheme using a solid fuel boiler and a solar collector (Fig. 4).

Rice. 4. Scheme with the use of a solid fuel boiler, solar collector and buffer tank: AF, WF1, VF1, VE1, SF, VE2, KSPF, KRLF, KVLF - outside air temperature sensors, boiler, coolant in the supply pipeline, at the water outlet from the buffer tank , DHW tank, water at the inlet to the DHW tank from the solar collector, at the water inlet to the buffer tank, at the water inlet to the solar collector, water in the solar collector; MK1, MK2, U1 - three-way mixing valves with an electric drive (heating system circuit, to maintain the set temperature at the inlet to the solid fuel boiler, a valve between the buffer tank and the solar collector); P1 - pump of the mixing circuit of the heating system

This ensures that the set temperature at the inlet and outlet from the boiler is maintained, the temperature of the water in the solar collector is monitored, and the flow of water entering the solar collector from the DHW tank and the buffer tank is switched. Parallel weather-compensated operation with a mixing heating circuit is possible.

To create large heating systems, it is often necessary to connect boilers in a cascade, which is also handled by controllers (Fig. 5). At the same time, optimal parameters and accounting of the operating hours of each heat generator are ensured.

Rice. 5. Connecting gas boilers to a cascade: AF, WF1, WF2, VF1, VF2, VF3, SF, RLF1, RLF2 - temperature sensors of the outside air, boiler, heating agent in the supply pipeline, DHW storage tank, water in the return pipeline; MK1, MK2, MK3, R1, R2 - three-way mixing valves with electric drive

In any case, for specific conditions, you can choose the most appropriate scheme, of which dozens of control device manufacturers offer.

Perspective - a universal controller

Currently, there is a tendency towards more sophisticated air conditioning systems in buildings. Developers of controllers adapt accordingly to this trend.

These devices already allow you to send data on the operation of systems via mobile communication or via the Internet. For example, in the United States, touchscreen monitors with the ability to integrate with the operating systems of Android smartphones have become widespread. Thus, it is possible to remotely control the operating parameters of climate systems, which can include not only heating, but also ventilation systems, air conditioning, security and fire systems.

Since different manufacturers have protected their products with different data transfer protocols, nowadays controllers have appeared that allow using all existing protocols (for example, CentraLine (Honeywell)). This is especially true when regulators are installed at modernized facilities.

However, with the increasing complexity of systems, the question arises of creating a kind of universal controller. This is currently the main perspective and challenge for developers. A single controller, depending on the software embedded in it, can be used to control various engineering systems of a building. This is a kind of small computer, for which it is only necessary to install the "software" for specific tasks and program it directly for a specific object.

The complexity of the implementation of freely programmable controllers lies primarily in the high cost of software. In addition, the issue of compliance with the level of training of the user, the availability of qualified service personnel and the exclusion of unauthorized interference in the operation of control devices is relevant.

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Heating and hot water controllers

Main Product catalog OWEN Measuring devices-regulators OWEN OWEN controllers for heating, hot water supply, ventilation, air conditioning Heating and hot water supply controllers

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The industrial controller OWEN TRM32 is designed to control and regulate temperature in heating and hot water supply circuits.

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The industrial controller OWEN TRM32 is designed to control and regulate temperature in heating and hot water supply circuits.

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The industrial heating and hot water controller OWEN TRM32 is designed to control and regulate the temperature in the heating and hot water supply circuits.

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Controllers of heating and hot water supply systems TRM132M in combination with primary converters, expansion module MP1 and actuators are designed to control and regulate the temperature in heating and hot water circuits, display the measured temperature and operating modes on the built-in indicator and generate control signals for the built-in output elements and output elements of the module MP1.

Controllers for heating systems from the OWEN company are distinguished by increased reliability and noise immunity. Such modifications of devices as ТРМ32-Щ4 or ТРМ132М are made in high-impact ABS plastic cases and are able to work effectively even in the harshest industrial conditions. These devices not only regulate the temperature of the heating and DHW circuits, but also protect the system from overstating the temperature of the return water returned to the heating plant.

If you need a reliable and accurate heating control controller, we advise you to pay attention to devices that are manufactured under the OWEN brand. These devices maintain the set temperature level in the system circuits. Also, heating controllers provide the ability to automatically switch modes, for example, "day-night". The device is characterized by easy programming and intuitive interface.

In addition, heating controllers also have a protective function. They regulate the temperature of the return water returned to the heating plant. In the event of overheating, the heating controllers lower the readings to normal values, thereby protecting the equipment.

Why buy a DHW controller on our website?

Here you will find controllers for heating systems, differing in:

• the number of inputs-outputs;
• type of case;
• interface for data configuration on a PC, etc.

Each DHW controller presented on the site meets international quality and safety standards, as evidenced by the relevant certificates. In addition, we offer each customer:

• Low prices. We sell controllers for heating systems at manufacturer's prices. We also offer various discounts and bonuses.
• Warranty and post-warranty servicing. OvenKomplektAvtomatika specialists have at least 5 years of experience with devices such as controllers for heating systems.
• Delivery throughout Russia. We will bring your heating control controller by courier service in Moscow and the region. We send devices to the regions by mail, express mail and transport companies.